Lantern-slide.



F. A. APFELBAUM.

LANTERN SLIDE.

APPLICATION FILED AUG.26, 1914.

1,132,423. I Patented Mar. 16, 1915.

. 1 x A TTOR/VEVS FREDERICK A. APFELBAUM, OF NEW YORK, N. Y.

LANTERN-SLIDE.

I Specification of Letters Patent.

Patented Mar. 16, 1915.

Application filed August 26, 1914. Serial No. 858,660.

To all whom it may concern:

Be it known that I, FREDERICK A. APFEL- BAUM, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, county and State of New York, have invented a new and Improved Lantern-Slide, of which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are: to provide slides of the character mentioned with manually adjustable means for showing the time of day on the illuminated field ot the screen used for exhibiting said slides; to provide a simple and eflicient means for adjusting the hands used in conjunction with a clock dial for announcing the time periods; to perform the operation of mount ng said hands for use in conjunction with the dial in a manner to avoid destruction or damage to the said dial or element carrying same.

Drawings.-Figure 1 is a face view of a slide constructed and arranged in accordance with the present invention; Fig. 2 is a face view of the color plate used in the manufacture of said slide; Fig. 3 is a face view of a cover plate used in conjunction with the color plate to protect the same; Fig. 4 is a vertical section on a large scale taken as on the line 4-4 in Fig. 1.

As seen in the accompanying drawings, a color plate 8 and a cover plate 9, both constructed of-glass, or other suitabletransparent material, are used in conjunction and mounted by means of edge binding tape 10. In the present invention theplates 8 and 9 are maintained in spaced relation by filling strips 11 which are placed between the plates adjacent to the edges thereof and surrounding the transparent field of the said plates. In producing the color plate 8 the photographic emulsion is placed on one side thereof and the plate is exposed, using for that purpose a negative arranged to print a clock dial such as shown in Figs. 1 and 2, and designated by the numeral 12. The remainder of the field or transparency is printed to show amusement pictures, or advertising matter.

After the plate 8 has been photographically developed the cover plate 9 is placed thereover, the filling strips 11 being first adjusted to support the said plate. The thickness of the strips 11 corresponds to the thickoperator.

ness of the overturned head of the rivet 13.

The rivet 13 is placed in a hole bored in the plate 9 to correspond with the center spot 14 of the dial 12. The outer end of the rivet 13 is curled over the hour hand 15 to hold the said hour hand and the minute hand 16 in operative position, exercising thereon just sufficient pressure to maintain said hands in the positions to which they are moved by the The hands 15 and 16 in service are disposed at the outer side of the plate 9 to be readily accessible for adjustment by the operator.

' It is obvious that if the plate 9 be broken as a result of the boring of the hole to receive the rivet 13, the loss incident thereto is relatively slight as compared with that incurredif the hole is bored in the color plate 8,which method of construction is involved in the manufacture of plates made in accordance with the patent granted to Meinhardt F ebruary 6, 1912, #1,016,575; also it is obvious that the strength of the color plate 8 is not impaired when constructed in accordance with the present invention; also the setting of the two hands 15 and 1d is'accomplished in a more natural or conventional way than provided for in the above mentioned patent, in the present instance both of the hands being adjusted to announce the hour and minute or time by moving the hands in dependently and manually over the cover plate 9 to register with the markings on the dial 12 of the color plate 8.

Claims:

1. A slide comprising a color plate having a time dial imprinted on one surface thereof; a transparent cover plate mounted in fixed relation to said color plate; and a plurality of clock hands pivotally mounted on said cover plate, the pivot of said hands being coincident with the center of said dial.

2. slide comprising a color plate having a time dial imprinted on one surface thereof; a transparent cover plate mounted 1n fixed relation to said color plate; and a plurality of clock hands pivotally mounted on said cover plate, the pivotal axes of said hands being coincident with the center of said dial. said hands extending from the exposed side of said cover plate, for manually shifting said hands.

3. A slide comprising a color plate having a time dial on one surfm thereof; a transioaireins. protective cover piste mounteo'i in name to this specification in the presence of fixed relation to said color plate; and movtwo subscribing; Witnesses.

able indicating members pivotaily mounted l on Sam cover plate, said members being man- REDERICK APFELBAUM' 5 ually manipulated for indicating time peri- Witnesses:

eds in conjunction with said dial. F. lifll'nsnncn in testimony whereof I have signeoi. my G. H. EMSLIE. 

